2026-20-15: Pneumatic

1. The authority citation for part 39 continues to read as follows: Authority: 49 U.S.C. 106(g), 40113, 44701. 2. The FAA amends § 39.13 by: a. Removing Airworthiness Directive (AD) 2025-04-05, Amendment 39-22963 (90 FR 10853, February 28, 2025); and b. Adding the following new AD: 2026-20-15 Airbus SAS: Amendment 39-23488; Docket No. FAA-2026-4649; Project Identifier MCAI-2025-00835-T. (a) Effective Date This airworthiness directive (AD) is effective November 23, 2026. (b) Affected ADs This AD replaces AD 2025-04-05, Amendment 39-22963 (90 FR 10853, February 28, 2025) (AD 2025-04-05). (c) Applicability This AD applies to all Airbus SAS Model A330-841 and -941 airplanes, certificated in any category. (d) Subject Air Transport Association (ATA) of America Code 36, Pneumatic. (e) Unsafe Condition This AD was prompted by reports of leaking bleed system high pressure valves (HPV), likely due to HPV clip failure and sealing ring damage. This AD was also prompted by certification of an improved HPV with unaffected HPV clips and the determination that the bleed monitoring computer (BMC) software must be updated. The FAA is issuing this AD to address a leaking HPV that may expose the pressure regulating valve (PRV), which is installed downstream from the HPV to high pressure, possibly damaging the PRV itself and preventing its closure. The unsafe condition, if not addressed, could result in high pressure and temperatures in the duct downstream from the PRV, with possible duct burst, damage to several systems, and consequent loss of control of the airplane. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Requirements Except as specified in paragraphs (h), (i), and (j) of this AD: Comply with all required actions and compliance times specified in, and in accordance with, European Union Aviation Safety Agency (EASA) AD 2025-0104R1, dated March 19, 2026 (EASA AD 2025-0104R1). (h) Exceptions to EASA AD 2025-0104R1 (1) Where EASA AD 2025-0104R1 refers to May 21, 2025 (the effective date of the original issue of EASA AD 2025-0104, dated May 7, 2025), this AD requires using the effective date of this AD. (2) Where EASA AD 2025-0104R1 refers to May 28, 2024 (the effective date of EASA AD 2023-0111R1, dated May 28, 2024), this AD requires using April 4, 2025 (the effective date of AD 2025-04-05). (3) Where EASA AD 2025-0104R1 refers to June 2, 2023 (the effective date of the original issue of EASA AD 2023-0111, dated May 26, 2023), this AD requires using April 4, 2025 (the effective date of AD 2025-04-05). (4) Where paragraph (19) of EASA AD 2025-0104R1 refers to December 8, 2022 (the effective date of EASA AD 2022-0227, dated November 24, 2022), this AD requires using April 4, 2025 (the effective date of AD 2025-04-05). (5) Where paragraph (21) of EASA AD 2025-0104R1 refers to December 8, 2022 (the effective date of EASA AD 2022-0227, dated November 24, 2022), this AD requires using July 18, 2023 (the effective date of AD 2023-11-08, Amendment 39-22454 (88 FR 38384, June 13, 2023)). (6) Where EASA AD 2025-0104R1 refers to September 5, 2022 (the effective date of EASA AD 2022-0181, dated August 29, 2022), this AD requires using September 15, 2022 (the effective date of AD 2022-19-05, Amendment 39-22174 (87 FR 54870, September 8, 2022)). (7) Where EASA AD 2025-0104R1 defines a Serviceable HPV, in part, as "EBAS HPV, eligible for installation in accordance with Airbus instructions", this AD requires replacing that text with "EBAS HPV eligible for installation". (8) Where paragraphs (1), (2), (3), (7), and (29) of EASA AD 2025-0104R1 specify to inform all flightcrews of airplane flight manual (AFM) revisions and dispatch limitations, and thereafter operate the airplane accordingly, this AD does not require those actions, as those actions are already required by existing FAA operating regulations (see 14 CFR 91.9, 91.505, and 121.137 for AFM requirements and 14 CFR 121.628(a)(2) and (5) for minimum equipment list requirements). (9) Where paragraph (20) of EASA AD 2025-0104R1 specifies "as required by paragraph (17) of the original issue of this AD", this AD requires replacing that text with "as required by AD 2025-04-05 as specified in paragraph (17) of EASA AD 2023-0111R1". (10) Where paragraph (30) of EASA AD 2025-0104R1 specifies "Modification of both EBAS HPV", this AD requires replacing that text with "Modification or replacement of both affected HPVs". (11) This AD does not adopt the "Remarks" section of EASA AD 2025-0104R1. (i) Credit for Previous Actions Replacing both affected HPVs with non-affected HPVs having part number 71070A030001 before the effective date of this AD using Airbus Aircraft Maintenance Manual (AMM) Tasks 36-11-51-000-806 and 36-11-51-400-806 may be accomplished in lieu of modifying both affected HPVs, as specified in paragraph (30) of EASA AD 2025-0104R1. (j) No Reporting Requirement Although the material referenced in EASA AD 2025-0104R1 specifies to submit certain information to the manufacturer, this AD does not include that requirement. (k) Additional AD Provisions The following provisions also apply to this AD: (1) Alternative Methods of Compliance (AMOCs): The Manager, AIR-520, Continued Operational Safety Branch, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request to your principal inspector or responsible Flight Standards Office, as appropriate. If sending information directly to the manager of the Continued Operational Safety Branch, send it to the attention of the person identified in paragraph (l)(1) of this AD and email to: [email protected]. (i) Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the responsible Flight Standards Office. (ii) AMOCs approved previously for AD 2025-04-05 are approved as AMOCs for the corresponding provisions of EASA AD 2025-0104R1 that are required by paragraph (g) of this AD. (2) Contacting the Manufacturer: For any requirement in this AD to obtain instructions from a manufacturer, the instructions must be accomplished using a method approved by the Manager, AIR-520, Continued Operational Safety Branch, FAA; or EASA; or Airbus SAS's EASA Design Organization Approval (DOA). If approved by the DOA, the approval must include the DOA-authorized signature. (3) Required for Compliance (RC): Except as required by paragraphs (j) and (k)(2) of this AD, if any material referenced in EASA AD 2025-0104R1 contains paragraphs that are labeled as RC, the instructions in RC paragraphs, including subparagraphs under an RC paragraph, must be done to comply with this AD; any paragraphs, including subparagraphs under those paragraphs, that are not identified as RC are recommended. The instructions in paragraphs, including subparagraphs under those paragraphs, not identified as RC may be deviated from using accepted methods in accordance with the operator's maintenance or inspection program without obtaining approval of an AMOC, provided the instructions identified as RC can be done and the airplane can be put back in an airworthy condition. Any substitutions or changes to instructions identified as RC require approval of an AMOC. (l) Additional Information (1) For more information about this AD, contact Rochelle Montgomery, Aviation Safety Engineer, FAA, 2200 South 216th St., Des Moines, WA 98198; phone: 405-551-0414; email: [email protected]. (2) For Airbus SAS material identified in this AD that is not incorporated by reference, contact Airbus SAS, Airworthiness Office-EAL, Rond-Point Emile Dewoitine No: 2, 31700 Blagnac Cedex, France; telephone +33 5 61 93 36 96; fax +33 5 61 93 45 80; email [email protected]; website airbus.com . (m) Material Incorporated by Reference (1) The Director of the Federal Register approved the incorporation by reference of the material listed in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51. (2) You must use this material as applicable to do the actions required by this AD, unless this AD specifies otherwise. (i) European Union Aviation Safety Agency (EASA) AD 2025-0104R1, dated March 19, 2026. (ii) [Reserved] (3) For EASA material identified in this AD, contact EASA, Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany; telephone +49 221 8999 000; email [email protected]. You may find this material on the EASA website at ad.easa.europa.eu. (4) You may view this material at the FAA, Airworthiness Products Section, Operational Safety Branch, 2200 South 216th St., Des Moines, WA. For information on the availability of this material at the FAA, call 206-231-3195. (5) You may view this material at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, visit www.archives.gov/federal-register/cfr/ibr-locations or email [email protected]. Issued on October 9, 2026. Brian Knaup, Acting Deputy Director, Integrated Certificate Management Division, Aircraft Certification Service. [FR Doc. 2026-21331 Filed 10-16-26; 8:45 am]BILLING CODE 4910-13-P